Apparatus for making extracts.



W. WIEGAND. 4 APPARATUS FOR MAKING BXTRAGTS.

APPLICATION FILED JULY 15,1909.

Patented Dec. 20, 1910.

aura) al r A N A Attornwa UNITED STATES: PATENT OFFICE. WILHELM wI GAiInoF MERSEIBURG, GERMANY, Assmnon'ro RI-CHARD swim, or

v rnanKroRT-oN-rHE-Miirm GERMANY.

' I AP PARATUS FOR MAKING EXTRACTS. i

To all it concerni- Be it known that I, YVILHELM ine-AND,

engineer, citizen of Germany, subject of the King of Prussia and Emperor of Germany, residing at Merseburg, in the Kingdom of Prussia and Empire of Germany,

" have invented new and useful Improvements in an Apparatus for Making Extracts, of

which'the following is a specification.

The invention refers to an apparatus for drawing extractive matter from different materials such as tannic materials, dyewood, beet, and the like.

" The'apparatus is espec1ally adapted for.

for stirring and mixing the solid material and bringing tliose parts of it which lie at first above the surface of the liquor into the body thereof. H A further object is that such stirring means consists of arms provided on a horizontal shaft of the oblong receptacle, helical convey1ng segements' alternating With said of iron and the liketo belacted upon tanning liquor.

-With these and other objects in view, the invention consists of certain novel features arms on said' shaft. Through the action of this stirring and forwarding device the formation of large stagnant areas of liquor .both in the upper and lower portion of the Y receptacle is avoided andthe solid material" is at-the same time stirred in a vertical rection and fed in a horizontal one.

apparatus of this character which will be most simple and cheap in. .construction and which may be constructed of wood, this being of importance in view of'the liability y of construction, combination and arrangementsof parts, as will be more fullydescribed and particularly pointed out in the appended claim.

One. form of construction of the device is illustrated in the drawing, Figure 1 being a side view of the apparatus partly in section and Fig. 2 a cross's'ection of it.

Inthe drawing 1 is the closed trough Specification of Letters Patent. Patnte Dec, 20, 1910,

Original application filed Tebruary 17, 1908, Serial No, 416,399. Divided and 1909. Serial No. 507,857.

this. ap ication filed July 15,

shaped wooden receptacle which may have a length of about ten to thirty and more meters. This long'receptac-le is horizontally arranged and is provided with an entrance chute 2 for feeding the solidmaterial from. which the extract is to be drawn out. A long shaft 4 is arranged in the receptacle and this shaft 4 may be rotated by means of the'intermeshing gear wheels 15 and 16 and the'belt pulley 17, connected. with the gear 16., Helical segments 3 are attached to this shaft 4 at intervals and-between these segments vertical stirring arms 13 are arranged, which may be fastened to the shaft-.4 by nuts18. A pipe 5 serves for continuously introducing extracting liquor into'the trough while '10 through the pipes 6 and 7 steam may be blown into it if desired. 8 is the discharge pipe for the enriched liquor which opens at a -fixed height in the receptacle 1 near the chute2. i

For the removal of the solid material from which the tanning, dyeing etc.*principle has 3 been extracted a dischargingcontrivance is aifixed to the opposite end of the trough which in the instance illustrated consists of rollers 9 and 10 provided with spikes or pins. These rollers 9 and 10 may be rotated by any suitable means from outside the receptacle.

11 is the discharge opening for the solid material and a fun'ne119 is provided beyond '85 ithis opening outside the trough. Three rolls or cylinders 12 are arrangedat the lower end of this funnel which may be turned in op- A still further ob ect' is to provide an following manner: The fresh material is introduced through the chute 2 while water is admitted through the pipe 5 and steam through the'pipes 6 and 7 and the forwarding helix 3, 4 is made to revolve. By this means the tanniferous material is quite gradually passed along toward the discharglng I end of the trough and through the action of the stirring arms 13 and the helical segments 3 is at the same time thorough y quite\gently from its inlet through-the tan nifero s material to theoutlet opening 'Sby thorou hly penetrating step by step the material which lies in front ofi't and is forced against it, In this way experiments have proved that, without employing costly apparatus, extracts of very high concentration can be continuously produced. The solid material which is slowly moved without a" great expenditure of power owing to the horizontal arrangement of the oblong recep-' tacle b means of the helical segments toward t e discharge end and is deprived of Correction in Letters .Patent No. 9793 its extractible material in a correspondin I rate becomes heaped up at the discharge en and'by the help of the partition 14 in front of the rollers 10 makes then a, steam tight closure 'forthe receptacle and when; it has i I become heaped up sufliciently high, is dis-' Patent Ofiice.

' 1 Signed and sealed this 7th dayof February, 1911. i

j charged tliroughthe' opening 1 1 by the help of the rollers 9 and 10.

Having now described my invention what I claim and desire to secure by Letters Pattalrrotatable shaft within said longc.-recep- I tacle and provided with alternating helical segments and stirring arms, a chute and a liquor outlet at a high point near one end of said receptacle, a water inlet pipe and a discharge device for the solidmaterial at the I other end, said discharge device consisting of rollers with spikes arranged near "the top of said latter end of the receptacle before a corresponding opening'and behind a verticalpartition, pendent from the top into the long receptacle.

. In testimony whereof I have hereunto set I my hand in presence of two subscribing witnesses. p WILHELM WIEGAND. Witnesses:. i

HENRY HASPER, WOLDEMAR It is hereby certified that Letters Patent No, 979,362, granted December 20; 1910, upon the application of Wiegand, of Merseb'urg, Germany, for an improvement in v A paratus for Making Extracts, were erroneously issued to Richard Rieder, as owner of the entire interest, whereas said Letters Patent shouldhave been issued to the inventor, Wie'gand and Richard R'ied'r, jointly, said Ri'eder being' assiguee of one-half interest only, asshown by the record of assignments ofthis oflice; and; that, the said Letters Patent should be read with this correction therein that the'samemay'conform to the record of thecase in the i 'O. G. BILLINGS, .ActzPng Commissioner of Patents.

I end of the trough and through the action of the stirring arms 13 and the helical segments 3 is at the same time thorough y quite\gently from its inlet through-the tan nifero s material to theoutlet opening 'Sby thorou hly penetrating step by step the material which lies in front ofi't and is forced against it, In this way experiments have proved that, without employing costly apparatus, extracts of very high concentration can be continuously produced. The solid material which is slowly moved without a" great expenditure of power owing to the horizontal arrangement of the oblong recep-' tacle b means of the helical segments toward t e discharge end and is deprived of l I rate becomes heaped up at the discharge en and'by the help of the partition 14 in front Correction in Letters .Patent No. 9793 its extractible material in a correspondin of the rollers 10 makes then a, steam tight closure 'forthe receptacle and when; it has i I become heaped up sufliciently high, is dis-' Patent Ofiice.

' 1 Signed and sealed this 7th dayof February, 1911. i

j charged tliroughthe' opening 1 1 by the help of the rollers 9 and 10.

Having now described my invention what I claim and desire to secure by Letters Pattalrrotatable shaft within said longc.-recep- I tacle and provided with alternating helical segments and stirring arms, a chute and a liquor outlet at a high point near one end of said receptacle, a water inlet pipe and a discharge device for the solidmaterial at the I other end, said discharge device consisting of rollers with spikes arranged near "the top of said latter end of the receptacle before a corresponding opening'and behind a verticalpartition, pendent from the top into the long receptacle.

. In testimony whereof I have hereunto set I my hand in presence of two subscribing witnesses. p WILHELM WIEGAND. Witnesses:. i

HENRY HASPER, WOLDEMAR It is hereby certified that Letters Patent No, 979,362, granted December 20; 1910, upon the application of Wiegand, of Merseb'urg, Germany, for an improvement in v A paratus for Making Extracts, were erroneously issued to Richard Rieder, as owner of the entire interest, whereas said Letters Patent shouldhave been issued to the inventor, Wie'gand and Richard R'ied'r, jointly, said Ri'eder being' assiguee of one-half interest only, asshown by the record of assignments ofthis oflice; and; that, the said Letters Patent should be read with this correction therein that the'samemay'conform to the record of thecase in the i 'O. G. BILLINGS, .ActzPng Commissioner of Patents.

Correction In Letters Patent No. 979,362.

It is hereby certified that Letters Patent No. 979,362, granted December 20,

1910, upon the application of Wilhelm Wiegand, of Merseburg, Germany, for an improvement in Apparatus for Making Extracts, were erroneously issued to Richard Rieder, as owner of the entire interest, whereas said Letters Patent should have been issued to the inventor, Wilhehn Wz'egand and Richard Rm, jointly, said Rieder being assignee of Mae-half interest only, as shown by the record of assignments of this oifice; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 7th day of February, A. D., 1911.

C. C. BILLINGS,

Acting Commissioner of Patents.

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